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90906 Commits

Author SHA1 Message Date
Jim Grosbach 7fd9aea67c For ARM stack frames that utilize variable sized objects and have either 
large local stack areas or require dynamic stack realignment, allocate a
base register via which to access the local frame. This allows efficient
access to frame indices not accessible via the FP (either due to being out
of range or due to dynamic realignment) or the SP (due to variable sized
object allocation). In particular, this greatly improves efficiency of access
to spill slots in Thumb functions which contain VLAs.

rdar://7352504
rdar://8374540
rdar://8355680

llvm-svn: 112883
 2010-09-02 22:29:01 +00:00
John McCall 310083c3e3 sabre points out that the timing here is pretty pessimal; I'll retry the 
experiment in a few days.

llvm-svn: 112882
 2010-09-02 22:27:38 +00:00
Bill Wendling ec9b5fe131 - Change __builtin_ia32_palignr intrinsic type to match the pattern in clang. 
- Add patterns to match the following MMX builtins:

   * __builtin_ia32_vec_init_v8qi
   * __builtin_ia32_vec_init_v4hi
   * __builtin_ia32_vec_init_v2si
   * __builtin_ia32_vec_ext_v2si

  These builtins do not correspond to a single MMX instruction. They will have
  to be lowered -- most likely in the back-end.

llvm-svn: 112881
 2010-09-02 22:26:35 +00:00
Johnny Chen 57b47384cc Added comments regarding the two mechanisms of process cleanup to lldbtest.py. 
Also changed the expected strings to be matched since "thread list" changed its
output format. 

llvm-svn: 112880
 2010-09-02 22:25:47 +00:00
Douglas Gregor 3ca46b4275 Add libclang visitation for UnresolvedLookupExprs 
llvm-svn: 112879
 2010-09-02 22:19:24 +00:00
Chris Lattner affc0e42f0 fix more AST updating bugs, correcting miscompilation in PR8041 
llvm-svn: 112878
 2010-09-02 22:19:10 +00:00
John McCall 25f7aa8158 Experimentally move the tautological comparison warnings from -Wsign-compare 
to -Wtautological-compare.  This implies that they're now on by default.
If this causes chaos, I'll figure something else out.

llvm-svn: 112877
 2010-09-02 22:18:59 +00:00
Owen Anderson 2912df072d Remove incorrect and poorly tested code for trying to reason about values on default edges of 
switches.  Just return the conservatively correct answer.

llvm-svn: 112876
 2010-09-02 22:16:52 +00:00
Anton Korobeynikov 56291f7e53 Properly allocate win64 shadow reg area. 
Patch by Jan Sjodin!

llvm-svn: 112875
 2010-09-02 22:16:28 +00:00
Dan Gohman 3afbd60320 Remove obsolete comments about throwing exceptions. 
llvm-svn: 112874
 2010-09-02 22:14:51 +00:00
Douglas Gregor 4edb2ff89f Add libclang visitation for C++ pseudo-destructor expressions. 
llvm-svn: 112873
 2010-09-02 22:09:03 +00:00
Bill Wendling eeb53e60bc Reorder the MMX builtins to be in their own ostracized group. 
llvm-svn: 112872
 2010-09-02 22:07:51 +00:00
Bill Wendling e6fd79bc1c Newline at end of file. 
llvm-svn: 112871
 2010-09-02 22:07:07 +00:00
John McCall 7f55c258c6 After some discussion with djg, teach SmallVector to grow from a zero 
capacity and remove the workaround in SmallVector<T,0>.  There are some
theoretical benefits to a N->2N+1 growth policy anyway.

llvm-svn: 112870
 2010-09-02 21:55:03 +00:00
Bruno Cardoso Lopes 814a69c330 Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles 
llvm-svn: 112869
 2010-09-02 21:51:11 +00:00
Douglas Gregor 6429f5cf29 Eliminate CXXBindReferenceExpr, which was used in a ton of 
well-intentioned but completely unused code.

llvm-svn: 112868
 2010-09-02 21:50:02 +00:00
Greg Clayton 6dadd508e7 Added a new bool parameter to many of the DumpStopContext() methods that 
might dump file paths that allows the dumping of full paths or just the
basenames. Switched the stack frame dumping code to use just the basenames for
the files instead of the full path.

Modified the StackID class to no rely on needing the start PC for the current
function/symbol since we can use the SymbolContextScope to uniquely identify
that, unless there is no symbol context scope. In that case we can rely upon
the current PC value. This saves the StackID from having to calculate the 
start PC when the StackFrame::GetStackID() accessor is called.

Also improved the StackID less than operator to correctly handle inlined stack
frames in the same stack.

llvm-svn: 112867
 2010-09-02 21:44:10 +00:00
Douglas Gregor fd81cea70c Teach libclang not to recursive into default argument expressions 
llvm-svn: 112866
 2010-09-02 21:38:13 +00:00
Daniel Dunbar 5dc823f7ef Add a compatibility note about why Clang rejects jumps past __block variables. 
llvm-svn: 112865
 2010-09-02 21:35:16 +00:00
Devang Patel 3bffd52d78 Detect undef value early and save unnecessary NodeMap query. 
llvm-svn: 112864
 2010-09-02 21:29:42 +00:00
Johnny Chen 7d1d7537cf Moved the process cleanup of Script-Bridge-based APIs into TestBase.tearDown() 
method where they belong.  Also fixed a logic error in maintaining the command
interface flag (runStarted) indicating whether the lldb "run"/"process launch"
command has been issued.  It was erroneously cleared.

Modified the test cases to take advantage of the refactoring.

llvm-svn: 112863
 2010-09-02 21:23:12 +00:00
Douglas Gregor 46af501065 Add libclang visitation for C++ typeid expressions. 
llvm-svn: 112862
 2010-09-02 21:20:16 +00:00
Dan Gohman 3c9b5f394b Don't narrow the load and store in a load+twiddle+store sequence unless 
there are clearly no stores between the load and the store. This fixes
this miscompile reported as PR7833.

This breaks the test/CodeGen/X86/narrow_op-2.ll optimization, which is
safe, but awkward to prove safe. Move it to X86's README.txt.

llvm-svn: 112861
 2010-09-02 21:18:42 +00:00
Douglas Gregor 32e4c861c8 In libclang, visit the nested-name-specifier and explicitly-specified template arguments of a MemberExpr. 
llvm-svn: 112860
 2010-09-02 21:07:44 +00:00
Devang Patel 98d3edfe2a Tidy up. 
llvm-svn: 112858
 2010-09-02 21:02:27 +00:00
Tom Care 9fbfeea05b Reverting 112850 and 112839 due to test failures on some systems 
llvm-svn: 112857
 2010-09-02 20:58:38 +00:00
Douglas Gregor aac7c8106a Visit the nested-name-specifier and explicitly-specified template 
arguments of a DeclRefExpr.

llvm-svn: 112854
 2010-09-02 20:35:02 +00:00
Sandeep Patel 0ca17f7e8a Fix an unnecessary XFAIL 
llvm-svn: 112853
 2010-09-02 20:19:24 +00:00
Jim Grosbach b2a9025bad trailing whitespace 
llvm-svn: 112852
 2010-09-02 19:52:39 +00:00
Owen Anderson 67dee4dcac Fix typo. I accidentally edited the wrong file before my last commit. 
llvm-svn: 112851
 2010-09-02 19:52:06 +00:00
Tom Care a25b273a5b Fixed broken build with GCC 
llvm-svn: 112850
 2010-09-02 19:00:08 +00:00
Benjamin Kramer e39017cb97 Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky. 
llvm-svn: 112849
 2010-09-02 18:53:37 +00:00
John McCall 1ba95136f2 Teach RecursiveASTVisitor to optionally visit bodies of instantiations. 
Based on a patch by Francois Pichet!

llvm-svn: 112848
 2010-09-02 18:48:54 +00:00
Jim Grosbach 6040995128 remove trailing whitespace 
llvm-svn: 112847
 2010-09-02 18:44:51 +00:00
Bruno Cardoso Lopes c79f50170a Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces 
llvm-svn: 112846
 2010-09-02 18:40:13 +00:00
Jim Grosbach 35f3252036 The scavenger should just use getAllocatableSet() rather than reinventing it 
locally.

llvm-svn: 112845
 2010-09-02 18:29:04 +00:00
Dan Gohman 9e857449de Apply a patch from Kees van Reeuwijk to add support for Minix. 
Minix apparently doesn't like double-slash separators, and there's
no apparent need for them here.

llvm-svn: 112844
 2010-09-02 18:24:46 +00:00
Owen Anderson a8c896b704 Fix a bug in LazyValueInfo that CorrelatedValuePropagation exposed: In the LVI lattice, undef and the full set ConstantRange should not 
be treated as equivalent.

llvm-svn: 112843
 2010-09-02 18:23:58 +00:00
Jim Grosbach aec776fd2a handle case where a register class is specified 
llvm-svn: 112842
 2010-09-02 18:18:52 +00:00
Jim Grosbach 66c681a644 Now that register allocation properly considers reserved regs, simplify the 
ARM register class allocation order functions to take advantage of that.

llvm-svn: 112841
 2010-09-02 18:14:29 +00:00
David Chisnall cf60744cd7 Tidy up last commit, as per Devang's comments. 
llvm-svn: 112840
 2010-09-02 18:01:51 +00:00
Tom Care 1ce2faca05 Improved error reporting in IdempotentOperationChecker 
- SourceRange highlighting is only given for the relevant side of the operator (assignments give both)
- Added PostVisitBinaryOperator hook to retrieve the ExplodedNode for an operator
- Added a BugReporterVisitor to display the last store to every VarDecl in a Stmt
- Changed bug reporting to use the new BugReporterVisitor

llvm-svn: 112839
 2010-09-02 17:49:20 +00:00
Douglas Gregor 04f3621860 Revert my two IRgen fixes for "bool", then use a far simpler approach 
based on ConvertTypeForMem. Thanks to John for pointing out the right
solution.

llvm-svn: 112838
 2010-09-02 17:38:50 +00:00
Douglas Gregor 3335f48448 Implement basic visitation for nested name specifiers via libclang 
cursors. Sadly, this visitation is a hack, because we don't have
proper source-location information for nested-name-specifiers in the
AST. It does improve on the status quo, however.

llvm-svn: 112837
 2010-09-02 17:35:32 +00:00
Dan Gohman b8cfcb05d4 Add a comment. 
llvm-svn: 112836
 2010-09-02 17:35:10 +00:00
Fariborz Jahanian 05bbef63b6 Another i1 vs. i8 type mismatch issue. This time 
a 'bool' byref variable in memory. Fixes radar 8382559.

llvm-svn: 112835
 2010-09-02 17:28:31 +00:00
Benjamin Kramer 5af02b0360 Allow MCSA_WeakRef in ELF. Patch by Roman Divacky. 
llvm-svn: 112834
 2010-09-02 17:18:32 +00:00
David Chisnall 6bf98ff491 Use the unmangled name for the display name in Objective-C debug info. This should have no effect with the Mac runtime where clang (unlike GCC) uses the display name symbol name. 
llvm-svn: 112833
 2010-09-02 17:16:32 +00:00
Jim Grosbach 944aece38a Anti-dependency breaking needs to be careful not to use reserved regs 
llvm-svn: 112832
 2010-09-02 17:12:55 +00:00
Devang Patel da3ef85460 Fix .debug_range for linux. Patch by Krister Wombell. 
llvm-svn: 112830
 2010-09-02 16:43:44 +00:00